Cemtolejeunea. franz stephani. species hepaticahum (Vol. V, 1913}. 



decurva, in plano lale ovata vel subrotunda, symmetrica, acuta, regu- 

 lariter minuteque denticulata, margine postico nudo, brevissima basi 

 inserta, basi antica truncata, nuda. Cellulse superae 18X18 fx basales 

 18 X 27 {X. Ocelli geminati 27 x 54 [j.. Lobulns majusculus, folio triplo 

 brevior, recte patens, oblongus, duplo longior quam latus, carina 

 arcuata, sinu acuto in folii marginem excurrens, apice quam basistriplo 

 angustiore oblique truncato, anguloacuto, subapiceconstricto. Amphi- 

 gastria caulina majuscula, caule duplo latiora, subtransverse inserta, ad 

 73 inciso-biloba, sinu recto, lobis ovato-triangulatis apiculatis acutis. 

 Perianthia parva, compresso-inflata, late obovata, cellulis inflatis papu- 

 losa (0,67 mm. longa, 0,5 mm. lata) quadricornuta, cornibus perianthio 

 aequilongis anguste clavatis, anticis leviter divergentibus, posticis 

 porrectis, rostro valido. Folia flotmlia perianthio sequilonga, obovato- 

 oblonga obtusa, superne irregulariterdenticulata, inferne nuda, lobulus 

 parum brevior, oblongus, triplo longior quam latus regulariter minu- 

 teque denticulatus, plus minus profunde solutus. Amphigastrium florale 

 lobulis sequilongum, ovato-ellipticum, lobulis breviter connatum, apice' 

 ad V^ inciso-bifidum, sinu semirecto, lobis acutis. Androecia in ramulis 

 terminalia, bracteis 3—6 jugis, dorso papulosis. 



Hab. Dominica. Guadeloupe. 



17. Ceratolejeunea cornuta. (Ldbg.) St. 



Syn. : Lejeunea cornuta Ldbg. Syn. Hep. p. 399. 



Monoica, minor, fusco-brunnea,corticolaetfoliicola. Cauiisaid^ib mm. 

 longus, parum irregulariterque pinnatus. Folia caulina imbricata, recte 

 patula, concava apiceque decurva, in plano ovato, (1,17 mm. longa, 

 0,83 mm. lata) acuta vel obtusa, integerrima, ad medium accreta, basi 

 antica truncata. Cellulae superae 18x18 {x, basales 27X36 p.. Ocetlus 

 basalis 27 X 54 [jl. Lobulus parvus (saepe obsoletus) ovatus, folio 

 septiiplo brevior, carina arcuata, levi sinu in foliura excurrens, apice 

 quam basis subduplo angustiore, leviter emarginato, angulo cellula 

 prominula acuto. Amphigastria caulina maxima, subtriangulata, 

 0,58 mm. longa, 0,83 mm. lata, profunde sinuatim inserta, apice 

 0,17 mra. iata, ad 7^ inciso-biloba, riraaangusta, lobis obtusis. Perian- 

 thia majuscula, obovato oblonga (1,17 mm. longa, raedio 0,75 rani. 

 lata) (cornibus exhisis) quadricornuta, cornibus angustis longis (0,5 ram .) 

 anticis late divergentibus, posticis porrectis. Folia floralia perianthio 

 parum breviora, obovata, apice rotundata vel obtusa, integerrima vel 

 sub apice remote angulata ; Lobulus parura brevior, anguste ligulatus, 

 profunde solutus, obtusus integerriraus. Amphigastrium florale foliis 



403 



